Appendix C. Supported Configurations - Lennox ComfortSense 7500 Installation And Setup Manual

Appendix D. Supported Configurations
This thermostat support air conditioner and heat pump systems with one or two speed compressors. It
also supports dual-fuel and Humiditrol accessory. For all possible configuration see table below.
Backup/
Indoor
Comp.
Heat
stages
HP GAS/OIL 1
HP GAS/OIL 1
HP NONE 1
HP GAS/OIL 2
HP GAS/OIL 2
HP NONE 2
HP ELEC. 1
HP ELEC. 1
HP NONE 1
HP ELEC. 2
HP ELEC. 2
HP NONE 2
GAS/OIL
OR
Non
ELEC.
1
HP
Back­
up/In­
1st 2nd
door
Heat Heat
Heat
Heat
Stage Stage
Stages Stages
1 2 Y1 W1
2 3 Y1 W1
0
1 Y1
1 3 Y1 Y1+Y2
2 4 Y1 Y1+Y2
0
2 Y1 Y1+Y2
1 2 Y1 Y1+W1
2 3 Y1 Y1+W1 Y1+W1+W2
0
1 Y1
1 3 Y1 Y1+Y2
2 4 Y1 Y1+Y2
0
2 Y1 Y1+Y2
1 1 W1
3rd Heat 4th Heat
Stage Stage
W1+W2
W1
W1 W1+W2
Y1+Y2+W1
Y1+Y2+W
Y1+Y2+W1
1+W2
38
2nd Em
heat
1st Em Heat Cool
Stage
Stage Stages
W1
W1 W1+W2
W1
W1 W1+W2
W1
W1 W1+W2
W1
W1 W1+W2
1st 2nd
Cool Cool
Stage Stage
1 Y1
1 Y1
1 Y1
2 Y1 Y1+Y2
2 Y1 Y1+Y2
2 Y1 Y1+Y2
1 Y1
1 Y1
1 Y1
2 Y1 Y1+Y2
2 Y1 Y1+Y2
2 Y1 Y1+Y2
1 Y1